And here I thought you might be heading down a new path with those colorful spinning top contest creations, but nope, Shifu is back in black :) The shape of the engines if great, by the way, I would echo Sebeus' comment about them as well.

I refuse to believe this is a Shifu creation - the name is not a smutty acronym. That aside, it IS black and really nicely put together so it could be. As Sebeus mentions below, really like that you used 5 of the hammers for each pod as it's a less likely construction and done really well.